Abu na farko da za a yi magana game da shi shine abin da ya faru na jiki na sarrafa kayan aikin titanium.Duk da cewa karfin yankan da aka yi da sinadarin titanium ya dan yi sama da na karfe mai kauri iri daya, al’amarin da ke faruwa a zahiri na sarrafa sinadarin titanium ya fi rikitarwa fiye da na sarrafa karfe, wanda ke sanya wahalar sarrafa taurin gami da tashi.
Thermal watsin mafi yawan titanium alloys ne sosai low, kawai 1/7 na karfe da 1/16 na aluminum.Saboda haka, zafi da aka haifar a cikin aiwatar da yankan alluran titanium ba za a canja shi da sauri zuwa wurin aiki ba ko kuma kwakwalwan kwamfuta za su tafi da su, amma zai tara a cikin yanki na yanke, kuma yawan zafin jiki da aka haifar zai iya zama har zuwa 1 000 ° C ko fiye. , wanda zai haifar da yanke kayan aiki da sauri da sauri, guntu da fashe.Ƙirƙirar ginin da aka gina, saurin bayyanar da aka sawa, yana haifar da ƙarin zafi a cikin yanki na yanke, yana ƙara rage rayuwar kayan aiki.
Babban zafin jiki da aka haifar yayin aikin yankewa kuma yana lalata amincin farfajiyar sassan alloy na titanium, wanda ke haifar da raguwar daidaiton juzu'i na sassan da aikin taurara sabon abu wanda ke rage ƙarfin gajiyarsu sosai.
Ƙwararren ƙarfe na titanium na iya zama da amfani ga aikin sassa, amma a lokacin yankan tsari, nakasar nakasar kayan aiki shine muhimmin dalilin girgiza.Matsakaicin yanke yana haifar da aikin aikin "lastic" don motsawa daga kayan aiki da billa don jujjuyawa tsakanin kayan aiki da kayan aikin ya fi aikin yankewa.Har ila yau, tsarin jujjuyawar yana haifar da zafi, yana daɗaɗa matsalar rashin kyawun yanayin zafi na gami da titanium.
Wannan matsala ta fi tsanani yayin sarrafa sassa masu sirara ko siffa mai siffar zobe waɗanda suke da sauƙi.Ba abu ne mai sauƙi ba don aiwatar da sassan titanium gami da bakin bangon bango zuwa daidaitaccen girman girman da ake tsammani.Domin lokacin da kayan aiki ya kori kayan aiki, ƙayyadaddun gida na bangon bakin ciki ya wuce iyaka na roba kuma lalata filastik yana faruwa, kuma ƙarfin kayan aiki da taurin wurin yanke yana ƙaruwa sosai.A wannan lokacin, injina a matakin yankan da aka ƙaddara a baya ya zama mai girma, yana ƙara haifar da lalacewa mai kaifi.Ana iya cewa "zafi" shine "tushen sanadin" wanda ke da wuyar sarrafa kayan aikin titanium.
A matsayin jagora a cikin masana'antar kayan aiki, Sandvik Coromant ya tsara tsarin sanin yadda ake sarrafa kayan aikin titanium kuma ya raba tare da duk masana'antar.Sandvik Coromant ya ce, bisa fahimtar tsarin sarrafa na'urorin da ake amfani da su na titanium gami da kara gogewa da suka gabata, babban aikin sanin yadda ake sarrafa alluran titanium shi ne kamar haka:
(1) Ana amfani da abubuwan da aka saka tare da ingantaccen lissafi don rage yanke ƙarfi, yanke zafi da nakasar aiki.
(2) Ci gaba da ciyarwa akai-akai don kauce wa hardening na workpiece, da kayan aiki ya kamata ko da yaushe kasance a cikin abinci jihar a lokacin yankan tsari, da kuma radial yankan adadin ae ya zama 30% na radius a lokacin milling.
(3) Babban matsa lamba da manyan-zuba yankan ruwa da ake amfani da su tabbatar da thermal kwanciyar hankali na machining tsari da kuma hana workpiece degeneration da kayan aiki lalacewa saboda wuce kima zafin jiki.
(4) Rike gefen ruwa mai kaifi, kayan aiki marasa ƙarfi sune sanadin haɓaka zafi da lalacewa, wanda zai iya haifar da gazawar kayan aiki cikin sauƙi.
(5) Machining a cikin mafi taushi yanayin da titanium alloy kamar yadda zai yiwu, domin abu ya zama mafi wuya ga na'ura bayan hardening, da zafi magani ƙara ƙarfi daga cikin abu da kuma kara lalacewa na shigar.
(6) Yi amfani da babban radius na hanci ko chamfer don yanke ciki, da sanya gefuna da yawa gwargwadon iyawa a cikin yankan.Wannan yana rage yanke ƙarfi da zafi a kowane wuri kuma yana hana karyewar gida.Lokacin da milling titanium gami, a cikin yankan sigogi, da yankan gudun yana da mafi girma tasiri a kan kayan aiki rayuwa vc, bi da radial yankan adadin (milling zurfin) ae.
Lokacin aikawa: Afrilu-06-2022